Fuel-oil burner.



W. E. COLWELL.

.FUEL OIL BURNER.

APPLICATION FILED APR. 4, 1914.

1,120,446. Patented Dec. 8, 1914.

A TTORNE Y UNITED STATES PATENT OFFICE,

WILLIAM Evans coLwELL, or zIoN CITY, ILLINOIS.

'FUEL-OIL BURNER l To all whom t may concern.' f

Be it known thaty I, WILLIAM EvANs CoL- WELL, a subject of the King of Great Brit ain, residing in Zion City, in the count of Lake, State of Illinois, one of the United States of America, have invented certain new and useful Imprvementsin Fuel-Oil Burners, of .which thefollowing is a speci-l iicatio My invention relates to improvements 1n fuel-oil burners, and relates `more particularly toy that'type of ,fuel-oil burner de.

signed to be used in the fire box oan ordinary cookstoveythough ofcourse my invention ma be applied to fuel-oil burners desi ed or'other uses.

he principal ob'jects of my invention are: firstly to provide means intermediate the generating tube and the burner to Vremove foreign matter such as dust and sca-le from the gas; secondly to provide regulating means in the tube whereby the one end of the amount of air reuired to mix with the gas may' be regulate at will; thirdl to provide means to cut of, portion of t e burner tion to` illustrate internal construction),

the same being shown mounted in the fire box of an ordinary kitchen ran which is own in section. Fig. 2is an evation of the outer end of m burner, showin the same mounted in a re box which is own in cross section. Fig. 3 is a detail view of the tra hereinafter referred to, portions thereof 'ng shown in section. Figs. 4 and ,5 are vertical cross sections respectively on thelines 4-4 and 5 5 Fig. 1, and Flg. 6 is a vertif lon 'tudinal section through urner on the line 6-6 2.

the drawings like characters of referance indicate corresponding parts in each A iathe of an ordinary cookspecmun of Lettersratent. application mea prix 4, w14. serial no. 829,446. f

stove in which `my fuel-oil burner is de-i Patented Dee. s, 191,4` 'l signed '1 tovbe suitably mounted The .fueloil burner comprises any suitable generating tube B, the extension() of which extendsthrough the Wall D of the stove.' rvEis the oil intake pipe,| and the same is coupled to.

the extension yC by the valve casing F. -Gr1v is the needle valve which .controls lthe sugply of fuel oil tosaid generating tube heextension 2 of the generating' tube B.

screws into the head 3 of the trap 4.

5 is-a coupling screwing into the 'head` 3. This coupling 5 extends through the wall D and is connected with the gas pipe 6 by the elbow coupling 7.

8 is the mixing tube which extends through the wall D. This mixing tube is provided with an elbow coupling 9 in the return end 10 of which is adjustably mounted the burner 11. l

Any of the well knownmethods are .em-I' ployed to initially heat the generating tube. he gas passes from this tube through the connections already described into ythe pipe 6, and passesthrough the elbow coupling 12 into the gas nipple 13 which extends through the outer end of the ymixing tube 8. The outer end of the gas nipple` 13 is closed by' a cap 14, and the outer end of the mixing tube 8 is closed by a ca 15.

The gas escapes from the gas nipp e 13 kthrough the oriice'or small hole -16 and gas so shoots into the mixing tube 8. As this mixing tube is'provided with a hole 17 in vits outer endpositionedv outside of the fire box,

.the stream of gas escaping lfrom the gas nipple 13 draw in therequired amount of air. As the burner 11 is provided with the usual slots 18, the gas escapes through the same and is consumed, and heats up theV generating tube B.

Many of the parts already z described are 1 of course well known. One of the objects of l my invention is to provide means for regulating the amount of air passing into the mixing 'tube 8 through the hole 17. My

construction for this purpose comprises a sleeve 1 9 mounted onthe end of the mixing tube 8 which projects throughthe wall D,

and formed in the sleeve 19 is an opemng or a hole 20' substantially the same size as the.

hole 17,l and positioned to be moved, into alinement therewith. By means of the lug 21 carried by `the/sleeve v19, this sleeve can be adjusted so as to re late the quantit of air the hole 17. -'s' means of regulating-the volume of air assing into the mixing tube is very simp e in construction, and the position thereof is very convenient. 1 v

Another object of my invention is to remove the dust, scale and other foreign mattrated in Fig. 3,- the stream of gas is dei'lected downward, with the result that.`

whatever particles of foreign matter may be carried along with the gas will be caused to drop down intothe pillar 25 and collect in the lower pli'florrthereof.r The gas of course ultimately escapesfrom the trap 4 through the end 27. of the head 3. 28 1s a screw cap closing the end of the pillar 2.5. This cap may be removed when desired to cleaned. By .positioning the lower end 23 of the lug 22 as described, I revent the particles of foreign matter carried along by the as into the head 3 being carried thereoutofgby the gas. One end of the burner 11 is closed by a plug 29, and suitably secured in this plug, y screw thread or otherwise isa rod 30, which is locked in place by the nut 31 whensaid rod is threaded. This rod is provided at its outer end with a cross bar 32. The

inner end 43 of the burner 11 is adjustably mounted within the return end L0 of .the elbow coupling 9. By means of the cross bar 32 an the construction just described, the burner .11 may be turned on its longitudinal axis so as to adjust the position of the flame in respect of the back` wall'33 of the fire box A. The slots 18 are preferably formed in the burner 11 in two rowsV down each side thereof, as illustrated in Fig. 5. Without further explanation -it will be understood that when the burner. 11 is turned on its axis to the right, the saidkslots will -be positioned so that the burning gases will play against the back wall 33 and so heat the oven which is behind said back 'wall (but not shown in the drawings) much quicker than when the slots 18 are positioned as illustrated in Figs. .1 and 5. This adjustment of the burner 11 is very important.

Mounted on the burner 11 to be-moved longitudinally thereof as well as circumferentially, is a burner cut of, in the formof a sleeve 34 provided at each end with aloop or ring 35, .whereby it is mounted on the .burner -11' TheV said loops or rings are oonpermit the said .pillar to be out departing from the spirit nected by a tie bar 36, which is normally positioned at the top side of the burner 11. The sleeve 34 is provided down each side with a longitudinal slot 37, the lower Vedge 38 of which is on a level with the bottom ends of the slots 1,8. e

39 is ythe cut oi portion of the sleeve 34, and the same is substantially semicircular in cross section and is imperforate. By means of the lug 40, the sleeve 34 may be then the cut oif39`may be moved to close a certain number of the slots 18 in the e moved longitudinally on the burner 11 and. v

burner 11, and thus prevent lighted gas from `forming the function of the burner cut o already described. Various changes in construction may be made in that illustrated and described withf of my invention.

What I claim as my invention is:

1. In a fuel-oil burner, the combination with a generating tube; a mixing tube, and a burner, of a trap intermediate said generating tube and said mixing tube in the form of a hollow pillar provided in its head with a downward depending baille lug against which lthe4 stream of gas impinges as it passes from said generating-tube into said mixing tube, as set forth.

2. In afuel-oil burner, the combination with a generating tube; a mixing tube, and a burner, of a trap intermediate-said generating tube and said mixing tube in the form of an open end hollow pillar provided in its head with a ldownward depending bajile vided in its outer portion with an intake hole for the air; va gas nipple connected with said generating tube and extending transversely through the outer end ofsaid mixing tube and provided with a gas orifice,

and a burner, of a sleeve provided-with an 1 l opening or hole mounted on the outer end of said mixing tube, and means whereby the position of said sleeve is adjusted to late the volume of air passing into said mixclosing the open end if'ng l:zube through the hole therein, as setort 4. In a fuel-oil burner, the combination with a generating tube, and a'mixing tube, of a coupling chrried by the inner end of said mixing tube; a. 'burner movably mounted in one end of said eouplin and means carried by thelopposite end o said burner whereby the said burner may be adjusted on its longitudinal axis.

5. In a'fuel oil burner, 'the combination with the burner proper, of a, burner cut-'oil in the formof a. sleeve mounted to be moved lon 'tudinally' and circumferentially on sai burner, and provided with a slot down each sidethereof, to form a loop et each end of the cut-of,`s,nd 4a.' eentrally positioned -tie bar connecting seid loops together; the

said slots circum rentially being co-extensive with the slots formed in said burner, and extending in .f an unbroken form throughout their length; the lower portion of said sleeve being the cut-olf proper, and constructed substantially semicircular in cross section, as set forth.

v In testimony whereof I have affixed my signature in presence of two witnesses..A

' WILLIAM EVANS COLWELL WitnHf-v: v i ALEXANDER S. Bumm,

R..'W. ,Wm'rlzsmmA 

